package com.cn.medicalcare.controller.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(filterName = "encodingFilter",urlPatterns = "/*")
public class EncodingFilter implements Filter {
    private String encode = "UTF-8";// 默认UTF-8编码
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        // 设置request编码
        request.setCharacterEncoding(encode);
        // response编码
        response.setCharacterEncoding(encode);
        filterChain.doFilter(request, response);
    }

    @Override
    public void destroy() {

    }
}
